Port Cylinder Head

stage
Mgb_1800_Stage_2_Gas_Flowed_Cylinder_Head_Polish_Ported_12h709_Big_Valve_Head_01_vjij

Mgb 1800 Stage 2 Gas Flowed Cylinder Head Polish & Ported, 12h709 Big Valve Head

MGB 1800 stage 2 gas flowed cylinder head suitable for 18V engines (1971-80). Original 12H2709 big valve head, polish and ported, new guides, professionally reconditioned and machined by Headline MK Ltd in 2018. This cylinder head was recently removed from my own car as I have changed the engine for a V8, last photo shows cylinder head before fitment. The head gives a significant improvement in performance, it has covered less then 3000 miles and is in full working order, any inspection welcome. Valve seats are as original, you may want to fit unleaded valve seats if you intend to cover high mileage. If you require more information then please…
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IAG_Stage_2_Pocket_Ported_Cylinder_Heads_For_Subaru_01_cxe

IAG Stage 2 Pocket Ported Cylinder Heads For Subaru

IAG Stage 2 Pocket Ported Cylinder Heads For Subaru 06-14 WRX, 07-20 STI, 06-13 FXT, 07-09 LGT. Please make package selection from the below options and comment on which set you will need. 2006-14 WRX, 2006-13 FXT, 2007-09 LGT - D25 Stage 2 Heads (PN# IAG-ENG-3020D). 2007 STI V25 Stage 2 Heads (PN# IAG-ENG-3020V). 2018-19 STI Type RA N25 Stage 2 Heads (PN# IAG-ENG-3020N). 2008-20 STI W25 Stage 2 Heads (PN# IAG-ENG-3020W). The head package centers around our popular CNC pocket porting program which was developed over the last several years. Pocket porting removes excess OEM casting flash and the material underneath the valves. By smoothing and blending this area…
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MGB_1800_Stage_4_Gas_Flowed_Polished_and_Ported_cylinder_head_01_nxeo

MGB 1800 Stage 4 Gas Flowed / Polished and Ported cylinder head

MGB 1800 Stage 4 Polished and Ported / Gas flowed unleaded cylinder head. This is for porting and polishing/gas flowing your own cylinder head. The ports are opened up and reshaped and polished for better gasflow, The combustion chambers are also polished for better gas flow and combustion. The head has 43mm/1.690" inlet valves and the exhaust has size 36.58mm/1.440" valves. The valve guides are cast iron with tapered nose. Please call 07973 325 328 for details on the machining your own head. REFACE VALVE SEATS 3 angles. STRIP , CHECK AND REBUILD WITH CAM AND FOLLOWERS. 36.58MM EXHAUST VALVES. CAST IRON VALVE GUIDES WITH TAPERED NOSE. Please ring 0161…
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